(19)

(11)

EP 2 488 669 A2

(12)

(43) Date of publication: 22.08.2012 Bulletin 2012/34 (21) Application number: 10823777.7 (22) Date of filing: 05.08.2010

(51) International Patent Classification (IPC):  C21B 7/00(2006.01) B23P 15/26(2006.01) F23L 5/00(2006.01) F28D 15/00(2006.01) C21B 7/16(2006.01) (86) International application number: PCT/US2010/044479 (87) International publication number: WO 2011/046666 (21.04.2011 Gazette 2011/16)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR Designated Extension States: BA RS (30) Priority: 16.10.2009 US 581088 (71) Applicant: MacRae, Allan J. Hayward, CA 94544 (US)	(72) Inventor: MacRae, Allan J. Hayward, CA 94544 (US) (74) Representative: Richards, John et al Ladas & Parry LLP Dachauerstrasse 37 80335 München 80335 München (DE)